CONCRETE BATCH PLANT OPERATOR FINAL PAPER EXAM
2025/2026 QUESTIONS WITH ANSWERS TAGGED A+
✔✔What is re-tempered concrete? - ✔✔Concrete that has water added after it initially
starts to set
✔✔An accumulation of hardened concrete in a mixer drum may cause: - ✔✔Inadequate
mixing
✔✔Who must demonstrate thru examination, adequate concrete related knowledge and
sign concrete delivery tickets? - ✔✔Concrete Batch Plant Operator
✔✔A design mix indicates that the amount of coarse aggregate to be used is 1,056
lbs/yd3 using pit #87-020 with a specific gravity of 2.46 and the specific gravity changes
to 2.49. How much coarse aggregate should be used to maintain the same volume? -
✔✔1,069 lbs/yd3
✔✔If the batch weight equals 3,810 and the yield is 27 ft3 what is the unit weight? -
✔✔141.1 lbs/ft3
✔✔What is the water-cementitious ration (w/cm) of a concrete mix that contains 550
lbs/yd3 of cement, 120 lbs/yd3 of fly ash and 35 gal/yd3 of water? - ✔✔0.44
✔✔A batch of sand is 1,310 lbs. If a 1,050 gram sample from the batch weighs 966.4
grams when oven dried, weights do not include the pan. How many pounds of dry sand
are there? - ✔✔1206
✔✔What type of of cement is used in for all mass concrete elements? - ✔✔Type II (MH)
✔✔What does the acronym OPC mean? - ✔✔Ordinary Portland Cement
✔✔What is Type I Cement? - ✔✔General use - everyday cement
✔✔What is type II Cement? - ✔✔Moderate soleplate resistance cement
✔✔What is type III cement? - ✔✔high and early strength cement- grind finer than type I
and II, costs more energy and not as sustainable
✔✔What is Type IV cement used for? - ✔✔low heat application cements- concrete
damn or huge concrete column - not used anymore, fly ash or slag is used now.
✔✔Type V - ✔✔High soleplate resistance cement.
2025/2026 QUESTIONS WITH ANSWERS TAGGED A+
✔✔What is re-tempered concrete? - ✔✔Concrete that has water added after it initially
starts to set
✔✔An accumulation of hardened concrete in a mixer drum may cause: - ✔✔Inadequate
mixing
✔✔Who must demonstrate thru examination, adequate concrete related knowledge and
sign concrete delivery tickets? - ✔✔Concrete Batch Plant Operator
✔✔A design mix indicates that the amount of coarse aggregate to be used is 1,056
lbs/yd3 using pit #87-020 with a specific gravity of 2.46 and the specific gravity changes
to 2.49. How much coarse aggregate should be used to maintain the same volume? -
✔✔1,069 lbs/yd3
✔✔If the batch weight equals 3,810 and the yield is 27 ft3 what is the unit weight? -
✔✔141.1 lbs/ft3
✔✔What is the water-cementitious ration (w/cm) of a concrete mix that contains 550
lbs/yd3 of cement, 120 lbs/yd3 of fly ash and 35 gal/yd3 of water? - ✔✔0.44
✔✔A batch of sand is 1,310 lbs. If a 1,050 gram sample from the batch weighs 966.4
grams when oven dried, weights do not include the pan. How many pounds of dry sand
are there? - ✔✔1206
✔✔What type of of cement is used in for all mass concrete elements? - ✔✔Type II (MH)
✔✔What does the acronym OPC mean? - ✔✔Ordinary Portland Cement
✔✔What is Type I Cement? - ✔✔General use - everyday cement
✔✔What is type II Cement? - ✔✔Moderate soleplate resistance cement
✔✔What is type III cement? - ✔✔high and early strength cement- grind finer than type I
and II, costs more energy and not as sustainable
✔✔What is Type IV cement used for? - ✔✔low heat application cements- concrete
damn or huge concrete column - not used anymore, fly ash or slag is used now.
✔✔Type V - ✔✔High soleplate resistance cement.
